canal obturation

Question 1

which two materials are used to seal a root canal?

Answer 1

resin sealer - pasted onto the master cone of:

gutta-percha

Question 2

what is the most common form of obturation and what are the equipment involved?

Answer 2

cold lateral compaction:

• gutta-percha equal to the size of the largest K file used
• finger spreaders
• resin sealer

Question 3

what should be done before obturation to ensure the canal is in correct shape?

what follows this?

Answer 3

check the tug back of the master cone

insert the cone and pull to see if there is a tug back / resistance to pulling the cone

followed by EDTA removal of canal debris, then sodium hypochlorite and drying

Question 4

what is the first step for gutta-percha obturation? how is obturation achieved after this?

Answer 4

insert master cone to working length along with finger spreader for lateral compaction

then accessory cones are placed until the canal is fully obturated

Question 5

how is obturation achieved once gutta-percha is placed? where should it be placed to?

Answer 5

heat gun to cut gutta-percha where it leaves equal to CEJ.

coronal portion sealed with a restoration sealer or RMGIC followed by composite restoration